A New Fuzzy Logic-Based Similarity Measure Applied to Large Gap Imputation for Uncorrelated Multivariate Time Series

Table 4

Computational time of different methods on the synthetic series in second (s).

Method	Gaps size
	1%	2%	3%	4%	5%	7.5%	10%
FSMUMI	353.9	427.5	701.9	1037.8	1423.6	2525.5	3556.8
Amelia	3.2	3.4	5.2	3.2	3.2	3.2	3.2
FcM	40.9	39.8	40.0	41.1	41.2	46.7	45.6
MI	844.1	714.0	739.1	723.3	724.5	719.7	726.5
MICE	7021.1	9187.7	21909.6	13041.9	14833.9	19417.7	23812.6
missForest	26833.8	24143.8	22969.9	32056.6	36485.8	42424.1	28521.1
na.approx	0.11	0.089	0.167	0.09	0.088	0.088	0.094
DTWUMI	5002.67	15714.8	37645.82	64669.71	86435.38	180887.78	273879